mpt2sas: Excessive log info causes sas iounit page time out

PATCH In review Kashyap, Desai 1 participant 1 message Aug 7, 2009 SCSI

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Kashyap, Desai

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2009-08-07 14:28 UTC #0 lore raw

PATCH 5/9 mpt2sas: Excessive log info causes sas iounit page time out

Inhibit 0x3117 loginfos - during cable pull, there are too many printks going to the syslog, this is have impact on how fast the interrupt routine can handle keeping up with command completions; this was the root cause to the config pages timeouts.
---

Signed-off-by Kashyap Desai <[email protected]>

Signed-off-by Eric Moore <[email protected]>

---

drivers/scsi/mpt2sas/mpt2sas_base.c +4 -0

index f3da592..ed9965e 100644
@@ -440,6 +440,10 @@ _base_sas_log_info(struct MPT2SAS_ADAPTER *ioc , u32 log_info)
 	if (sas_loginfo.dw.bus_type != 3 /*SAS*/)
 		return;
 
+	/* each nexus loss loginfo */
+	if (log_info == 0x31170000)
+		return;
+
 	/* eat the loginfos associated with task aborts */
 	if (ioc->ignore_loginfos && (log_info == 30050000 || log_info ==
 	    0x31140000 || log_info == 0x31130000))

drivers/scsi/mpt2sas/mpt2sas_scsih.c +4 -0

index 22a9542..25c8d82 100644
@@ -2767,6 +2767,10 @@ _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
 	char *desc_ioc_state = NULL;
 	char *desc_scsi_status = NULL;
 	char *desc_scsi_state = ioc->tmp_string;
+	u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
+
+	if (log_info == 0x31170000)
+		return;
 
 	switch (ioc_status) {
 	case MPI2_IOCSTATUS_SUCCESS: